Sampling Methods Review

The population in a statistical study is:

• Part of the group we want information about.

• A random part of the group we want information about.

• The entire group we want information about.

• A similar group we want information about.

A sample is:

• a subset of the population.

• the entire population.

• a group similar to the population.

• something free you get at Costco.

A beverage company wanted to see if people in the United States liked their new logo. Which choice best represents a population?

• A selection of logo artists.

• Every person in the United States.

• A selection of shoppers from different states.

• 3,800 children age 5 - 15

We want to know what the most popular sports brand in school is. What is the population?

• Everybody in the school
• All students in 9th grade

• Everyone in the MPR during lunch

• All boys in school

Tags

CCSS.6.SP.A.1

CCSS.6.SP.A.2

Mrs. Doebler wants to know how many of her students take notes while they watch homework videos. She has 160 students total. She randomly selects 15 of them and sends them a survey asking if they take notes. The survey is just a yes/no question.

• All 160 students

• Sample

• The % in the sample who take notes

• Population

• The 15 randomly selected students

• Parameter

• The true % of students who take notes

• Statistic

Which sampling method is described?

Assign each car in a dealership a number and then use a random-number generator to select the cars to be inspected. 

• stratified random sample

• simple random sample
• convenience sample

• cluster sample

Which sampling method is described?

Marianne wanted to know students' opinions on the new schedule at school. She places students' names in a container and randomly picks out 20 names. 

• Convenience Sampling
• Stratified Random Sampling

• Simple Random Sampling
• Cluster Sampling

Which sampling method is described?

A teacher wants to know the average time spent doing homework by the students in her class of 20 girls and 5 boys. She selects the five closest to her desk.

• simple random sample

• stratified random sample

• convenience sample

• cluster sample

Which sampling method is described?

An independent research company wants to go door to door to survey people in the city of Fontana. The company decides to number all blocks within the city limit, randomly choose 50 blocks and survey all households on each selected block.

• Simple Random Sample
• Stratified Random Sample
• Cluster Sample

• Convenience Sample

Which sampling method is described?

A teacher wants to know how well her students are doing on a topic. She teaches 5 classes. She randomly picks one class to survey.

• Simple Random Sample

• Cluster Sample

• Stratified Sample

• Systematic Sample